Signed languages and language change: Response to Law, Power, and Quinto-Pozos

In response to Law et al.’s (2025) target article on signed language change, I discuss two aspects of regularity in sound change: the role of phonemes and the contribution of iconicity. Drawing on work on sound change in spoken languages, I set out some arguments for why linguistics needs to take proper account of signed language change, in order to better understand language dynamics in general. I further argue that signed ~ spoken language dichotomies or arguments from exceptionalism are unlikely to be as helpful as robust hypothesis testing. *